PowerSILO Inc has developed a unique way to generate a controlled & sustained +45 mph airflow that is harnessed to produces clean base load power from proprietary Heat2Power Technology called STUT. The technology is scalable from small/medium commercial & industrial generation, to utility scale; and operates within a self-contained system called the Sub-Terranean Updraft Tower or (STUT). The PowerSILO(STUT) Energy Harvesting Heat to Power Conversion process harnesses the waste heat (not Exhaust Heat) of any thermal-electric power plants, creating an additional NETZero Emissions power generation cycle, which increases overall efficiency and generation capacity, while reducing use of water for cooling, CO2 emissions, & operating expenses.